Lamp-burner.



C. L. WAGANDT.

LAMP BURNER.

MPLICATION FILED luLYzx |915.

1.162.314. PatentedNov. 30, 1915.

2 SHEETS-SHEET l- @Hom/magg COLUMBIA PLANoaR/PH C0..wAsmNuToN. D. C.

c. L. WAGANDT.

LAMP BURNER.

APPLICATION FILED JULY 2, I9l5.

1., 1 62,7 l 4. Patented Nov. 30, 1915.

2 SHEETS--SHEET 2.

CoLuMBlA PLANOGRAPH cnw^sH|NGToN, u. c.

UNITED STATES PATENT OFFICE.

CHARLES L. WAGANDT, 0F BALTIMORE, MARYLAND, ASSIGNOR T0 THE NATIONALENAMELING- & STAT/[PING- COMPANY, OF NEW YORK, N. Y., A 4CORPORA'IION OFNEW JERSEY.

LAMP-BURNER.

Patented Nov. 30, 1915.

Application filed July 2, 1915. Serial No. 37,635.

To all whom t may concern Be it known that I, CHARLES L. IVAGANDT, acitizen of the United States, residing at Baltimore, in the State ofMaryland, have invented certain new and useful Improvements inLamp-Burners, of which the following is a specification.

This invention relates to improvements in lamp burners and hasparticular reference to that form of burner wherein wicks are employedto feed the oil to the point .of ignition which burners are providedwith llame spreaders;

In the class of devices to which the invention is particularly adapted,the wick is confined between concentric wick tubes and the flamespreader is provided with a flange that seats on the outer end of thewick. Also in said class of devices it has been common to provide astationary central rod extending vertically from a rigidly-secured pointin the inner wick tube and projecting up through the flame spreader toserve as a guide on which the spreader may move vertically as the wickis either raised or lowered. As heretofore constructed these permanentlyrigid guide rods have been found objectionable for various reasons, someof which are, that their outer or upper ends are provided with a stopthat screws onto said end and which must be removed before the spreadercan be detached and is therefore liable to be mislaid or lost whenremoved. Another objection is that the position or location of thisdetachable stop is such as to subject it to the action of extreme heatbecause it is directly over the top of the spreader, and diiliculty istherefore often experienced on removing the stop as the result of theaction of the heat thereon. A further objection to those permanentlyrigid guide rods is, that when the spreader is detached for cleaningpurposes, the rod remains in the center of and projects above the wicktubes where it materially interferes with and prevents access tothe wicktubes and sometimes becomes bent because of such projection, and whenbent interferes with the ready replacement of the spreader.

My invention therefore has for its object to provide an improved flamespreader guide and attaching device, that will be entirely free of allof the objections above-mentioned and which may be permanently connectedto the flame spreader so as to form a part thereof; will be removed withthe spreader and will be connected with the wick-tubes at a pointentirely removed from the fia-nie or the extreme heat of the latter andtherefore readily removable. Incidently the construction will also servethe usual function as an extinguisher.

lVith these, and other objects in view, the inventive idea isillustrated in the accompanying drawings wherein,-

Figure 1, shows a central vertical section through the upper portion ofthe wicktubes and the flame spreader to which my invention is applied.Fig. 2, is a sectional plan of the wick-tubes,-the section being takenon the line 2--2 of Fig. 1. Fig. 3, shows the detached spreader and theguide rod permanently connected therewith. Fig. 4, illustrates the lsamein inverted or bottom plan. Fig. 5, shows the guide rod in sideelevation, the spreader being omitted. Fig. 6, is a view similar to thatin Fig. 1, but showing a modified form of guide rod and connectionwith'the wick tubes. Fig. 7, shows the spreader and guide rod of themodified form detached and in side elevation. Fig. 8, illustrates thelatter in bottom plan, and Fig. 9, shows a sectional elevation of themodified form of guide rod.

Referring to the drawings by numerals, 10, designates an outer wicktube, 11, the inner wick tube and 12, the wick between said tubes. Inpractice suitable means is employed to raise and lower the wick withrespect to said tubes but this feature is deemed unimportant to thepresent invention, and therefore is not illustrated.

Ihe flame spreader may differ materially in construction from that shownin the accompanying drawing, and the invention is therefore not to berestricted in this respect. In the present instance however the spreaderis shown as having a cylindrical portion 13; a cap 14, at the upper endthereof and a wick ring 15, with an annular lateral flange 16, thatprojects over the top of the wick. The wick ring is rigidly secured tothe lower part of the cylindrical portion and is provided with a centralbottom plate 17, which is sustained from the ring by means of radialarms 18,-the whole forming a spider-like structure that is rigid withthe spreader. The plate 17 is provided with a central perforation 19,and the cap 14, also has a central perforation 20, in vertical alinementwith the perforation 19.

A guide stem 21, extends vertically through the spreader, passingloosely through the perforations 19 and 20, and said stem is provided atits upper projecting end with a permanently-attached head 22, and belowthe plate 17, is further provided with a stop projection 23. It willthus be understood that while the guide stem is loose with respect tothe spreader' and allows the latter to move longitudinally thereon, suchmovement is restricted in one direction by the permanently-attached head22, on the stem and is restricted in its movement in a reverse directionby means of the rigid stop projection 23, on the stem. This latter stop23, may have a variety of forms and shapes, but in the present instanceits form is that of a washer that rigidlyembraces the stem. It will alsobe understood that the stem 21, is permanently connected to the spreaderand neither can be removed from the other. It is also to be particularlynoted that the stem has no detachable head, nut or other device at itsouter end over the top of the spreader cap where the heat is obviouslyintense.

Down inside of the inner wick tube 12, I provide a crosswise spider orplate 24, that is rigid with respect to said tube and therefore has novertical movement'therein, the object of which is to provide aconnection below the intense heat of the burnerl at which the lower endof the guide stem may be detachably secured and thereby avoid the actionof such heat on the detachable connection. The means employed to eiiectthis detachable connection of the guide stem below the spreader may alsovary in construction, but in the form of device shown in Figs. 1 to 5,inclusive, the lower end 25, of the stem is provided with exteriorscrew-threads 26, which latter screw into a threaded perforation that isprovided in the rigid plate 24, as shown in Fig. 1. By this means thelower end of the guide stem 21, is detachably connected down in theinner wick tube at a point removed from the upper edge of the wick-tubesand much below the flame spreader, consequently the intense heat at andaround the spreader cannot affect the threaded connection of the stem.

The permanently-attached head 22, at the outer end of the stem is ofample size to afford a broad stop for the flame spreader when the latteris raised by the wick and to also enable the stem to be rotatedindependently of the spreader in engaging or disenlgaging it with therigid plate in the wick tu e'.

The plate 24, down in the inner wick tube is preferably provided with aconcave central portion 27, at the center of which s the threadedperforation, and by means of this formation the threaded end of thelstem is readily brought into register with the threaded perforation forconnection therewith.

In the modified structure shown in Figs. 6 to 8, inclusive, thewick-tubes, wick and spreader are of the same construction asillustrated in Figs. 1, 3 and 4,-the difference being in the form ofconnection between the lower end of the guide stem and a stationarydevice in the inner wicktube. In this modified form I provide a spideror plate 28, that is rigid with the inner wicktube but which. has acomparatively short vertical post 29, which latter has its upper endscrew threaded and terminating below the upper ends of the wick-tubesand also below the plate'l, at the bottom of the flame spreader. In thismodified form the guide stem 30, also passes freely through the cap '14and plate 17, of the spreader and has the stop head 31, at the upper and'outer end and a stop flange 32, at its lower inner end. A threadedsocket 33, is provided in the lower end of this stem and the bottom face34, of the stop flange is concaved around the socket entrance. By meansof this construction the lower socket end of the guide-stem:` will bebrought into ready registration ,or alinement with the upper threadedend of the post 29,

when the lower end of the flame spreader is lowered into the innerwick-tube anda few revolutions of the permanently attached head 31, atthe outer end of the stem' will effect a rigid connection between thelower end of the stem and the post.

It will thus be seen that in both forms of devices the guide stem is apermanent part of the spreader and cannot be detached because of thehead at the outer side and the stop at the inner side of the spreader;that the connection is made at a point much below that where the intenseheat is located; that the spreader is free to move on the stem as thewick is raised or lowered and therefore free rotation of the spreader onthe stem is permitted; that no central rod projects from the wick tubewhen the spreader is detached and that wabbling of the spreader on theguide stem is prevented because of the two bearing perforations 19 and20, at the upper and lower portions of the spreader.

Having described my invention I claim,-

1. A flame spreader for oil burners having an annular shell, and a guidestemcarried by the spreader and permanently attached thereto said stemhaving a head at its outer end and at its inner end provided with screwthreads and the spreader havingmg an annular shell with a cap plate atthe Outer sld@ and a guide stem carried by and permanently attached tothe spreader said stem having a restricted longitudinal movement throughthe cap plate and shell and provided with means at its inner end todetachably connect it With an oil burner.

3. A flame spreader for oil burners having an annular shell with a capat its upper side and a plate with openings therein at its lower side,of a guide stem carried by and extending through the shell and havingits ends projecting through the cap and plate respectively and means forpreventing detachment of the shell from the stem.

a. A flame spreader for oil burners having an annular shell with a capat its upper side and a plate with openings therein at its lower side,of a guide stem carried by and extending through the shell and havingits ends projecting through the cap and plate respectively; a head atthe outer end of the stem and a stop on the stem beyond the plate at thelower side of the spreader.

5. In an oil vburner the combination With the wick-tubes, of a flamespreader having an annular shell; a guide stem carried by andpermanently attached to the spreader, and means for detachably engagingthe stem below the upper end of' the Wick tubes.

6. In an oil burner the combination With i' the Wick tubes, of a amespreader; a guide means in the Wick tube for detachably connecting thespreader stem.

7. In an oil burner the combination with the Wick tubes, of a flamespreader; a guide stem passing freely through the spreader and providedWith means at opposite sides of the yspreader to permit restrictedmovement of the latter thereon and means in the inner wick tube fordetachably engaging the inner end of the spreader stem.

8. In an oil burner the combination with the wick tubes, of a flamespreader having a cap at one side and a plate at the other side,-saidcap and plate having alined perforations; a guide stem extending freelythrough said perforations; means on the stem to limit the movement ofthe spreader thereon in both directions and means for detachablysecuring the inner end of the spreader stem in the inner Wick tube.

9. In an oil burner the combination with the wick tubes, of a flamespreader having an annular shell; a guide stem carried by the spreader;a head permanently carried on the outer end of the stem and means fordetachably connecting the inner end of the guide stem in the inner wicktube.

In testimony whereof I afliX my signature in presence of tivo Witnesses.

CHARLES L. VVAGANDT.

Witnesses Louis PETER STRATEN, HARRY F. CRAIG.

Copies of lthis patent may be obtained for five cents each, nyaddressing the Commissioner of Patents, Washington. D. C."

